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Location: cpp/openttd-patchpack/source/src/core/random_func.cpp - annotation
r9583:b6e25a00b908
1.2 KiB
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(svn r13621) -Fix: building roadbits in the wrong direction on bridges or building roadbits from underneath the bridge to the bridgehead is impossible, so don't silently ignore that error when building over houses and industries is not ignored.
r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r9111:983de9c5a848 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8113:7815c26d7612 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8142:8414f11ec81b r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8079:6aca1c44007e r8477:5efae99a3878 r8477:5efae99a3878 r8477:5efae99a3878 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r8434:4d5d2dc41ce0 r8434:4d5d2dc41ce0 r8477:5efae99a3878 r8434:4d5d2dc41ce0 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r7935:d51ba3fb01a8 r8792:db826506a415 | /* $Id$ */
/** @file random_func.cpp Implementation of the pseudo random generator. */
#include "../stdafx.h"
#include "random_func.hpp"
#include "bitmath_func.hpp"
Randomizer _random, _interactive_random;
uint32 Randomizer::Next()
{
const uint32 s = this->state[0];
const uint32 t = this->state[1];
this->state[0] = s + ROR(t ^ 0x1234567F, 7) + 1;
return this->state[1] = ROR(s, 3) - 1;
}
uint32 Randomizer::Next(uint16 max)
{
return GB(this->Next(), 0, 16) * max >> 16;
}
void Randomizer::SetSeed(uint32 seed)
{
this->state[0] = seed;
this->state[1] = seed;
}
void SetRandomSeed(uint32 seed)
{
_random.SetSeed(seed);
_interactive_random.SetSeed(seed * 0x1234567);
}
#ifdef RANDOM_DEBUG
#include "../network/network_data.h"
#include "../variables.h" /* _frame_counter */
#include "../player_func.h"
uint32 DoRandom(int line, const char *file)
{
if (_networking && (DEREF_CLIENT(0)->status != STATUS_INACTIVE || !_network_server)) {
printf("Random [%d/%d] %s:%d\n",_frame_counter, (byte)_current_player, file, line);
}
return _random.Next();
}
uint DoRandomRange(uint max, int line, const char *file)
{
return GB(DoRandom(line, file), 0, 16) * max >> 16;
}
#endif /* RANDOM_DEBUG */
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